Table 2.

Baseline patient features and pregnancy outcomes after propensity score matching based on age and blastula/cleavage stage embryo ratio

Characteristics	G-CSF group (n = 122)	Non-G-CSF group (n = 122)	P value
Age (yr), mean ± SD	33.54 ± 5.97	33.45 ± 5.45	0.902
BMI (kg/cm2), mean ± SD	21.17 ± 2.33	20.79 ± 2.71	0.241
Average infertility years (yr), mean ± SD	4.77 ± 1.98	4.95 ± 1.93	0.473
Primary infertility cycle, n (%)	45 (32.64)	50 (40.77)	0.512
Secondary infertility cycle, n (%)	77 (67.36)	72 (59.23)
Average endometrial thickness (mm), mean ± SD	7.13 ± 0.43	7.17 ± 0.43	0.468
Cycle with one transplanted embryo, n (%)	30 (24.59)	30 (24.59)	> 0.999
Cycle with two transplanted embryos, n (%)	92 (75.41)	92 (75.41)
Cycle with blastula transplantation, n (%)	35 (28.69)	35 (28.69)	> 0.999
Cycle with cleavage stage embryo transplantation, n (%)	87 (71.31)	87 (71.31)
Clinical pregnancy rate, %	50.82 (62/122)	48.3 (59/122)	0.701
Embryo implantation rate, %	37.38 (80/214)	34.11 (73/214)	0.480
Ectopic pregnancy rate, %	3.23 (2/62)	1.69 (1/59)	0.965
Early abortion rate, %	12.90 (8/62)	23.73 (14/59)	0.123

G-CSF: Granular leukocyte-colony stimulating factor; BMI: body mass index.